Hello
I have a VM with Windows 2012 running nicely in PVE 3.2.
This VM has a 300 GB disk size that was re-partition with 5 or 6 different
parts, in order to allocate different databases...
The issue is that the backup task takes 6 hours to generate a lzo file with
13 GB size!
However, I have
High I/O when you backup ?
Try https://pve.proxmox.com/wiki/Shrink_Qcow2_Disk_Files (when you have a good
backup!)
Van: pve-user [mailto:pve-user-boun...@pve.proxmox.com] Namens Gilberto Nunes
Verzonden: woensdag 27 augustus 2014 18:47
Aan: pve-user@pve.proxmox.com
Onderwerp: [PVE-User] backup
Hum... At first moment, I thought I/O could being a trouble, since I was
ran backup in USB devices.
But now, I ran backup task on SAS disk! So performance and I/O is not an
issue here...
And, I can't shrink the file, because the entire disk is being used to all
databases as I described before...
I/O in VM when you backup (SQL tasks etc) is slowing down backup.
Van: Gilberto Nunes [mailto:gilberto.nune...@gmail.com]
Verzonden: woensdag 27 augustus 2014 18:55
Aan: Bart Lageweg | Bizway
CC: pve-user@pve.proxmox.com
Onderwerp: Re: [PVE-User] backup takes so long to finish
Hum... At first
Perhaps!
But I have other VM's with SQL Server and running smoothly...
Thanks anyway
2014-08-27 13:57 GMT-03:00 Bart Lageweg | Bizway b...@bizway.nl:
I/O in VM when you backup (SQL tasks etc) is slowing down backup.
*Van:* Gilberto Nunes [mailto:gilberto.nune...@gmail.com]
*Verzonden:*
Unfortunately, I do not have such luxury by now... SSD is out of the
question, for a moment...
But I changed from USB device to SAS device, in hope to improve the I/O
performance... But no success...
The VM itself, is running is SAS as well, since it hosted in an IBM
Storage...
I'm still search
Maybe you will have better performance if you split them. So keep the
busiest database on IBM storage and put the others on USB. This way you
share the I/O load.
Regards,
Iosif
On Wed, Aug 27, 2014 at 7:09 PM, Gilberto Nunes gilberto.nune...@gmail.com
wrote:
Unfortunately, I do not have such
Just for compare, the very same backup from same VM takes 50 minutes, on
previously scenario, I meant, run in a single IBM M4 server with SAS
disks...
Now, in the Storage and an IBM x3250 M4 server, with 128GB of memory, takes
6 hours!
I can't understand why! So weird!
2014-08-27 14:21
Is the storage over iSCSI ?
Yes! Standard iSCSI. I not enable trunk yet, I meant, bonding... You know...
Is the storage via 1GB link ?
Yes... Switch gigaethernet, CAT6 and all NIC are gigaethernet as well...
2014-08-27 14:33 GMT-03:00 Iosif Peterfi iosif.pete...@gmail.com:
Is the
Probably there is the bottleneck. 1Gbit = 100MB/s. Probably your SAS might
be faster than considering it uses SATA II 300 MB/s or SATA III 600 MB/s.
On Wed, Aug 27, 2014 at 7:35 PM, Gilberto Nunes gilberto.nune...@gmail.com
wrote:
Is the storage over iSCSI ?
Yes! Standard iSCSI. I not
ok
2014-08-27 15:14 GMT-03:00 Dietmar Maurer diet...@proxmox.com:
Please can you stop double posting to the list and the forum?
Gilberto Ferreira
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pve-user@pve.proxmox.com
Well I don´t know exactly but perhaps the reason is because the VM is
hosted over LVM-on-iSCSI???
Just a idea...I am really lost here...Trying find a reason to explain all
the lost of performance...
I took all necessary cares about cables, switches, storage and now a simple
backup task takes so
On Wed, 27 Aug 2014 15:36:19 -0300
Gilberto Nunes gilberto.nune...@gmail.com wrote:
Just a idea...I am really lost here...Trying find a reason to explain all
the lost of performance...
I took all necessary cares about cables, switches, storage and now a simple
backup task takes so long to
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